insurance. >> hi, everyone. i'm jack hanna, coming to you from my base camp here at the columbus zoo. and welcome to "wild countdown." today i've recruited 7 incredible athletes you'll never see at the olympics. like the fleet-footed felines that can sprint over 70 miles per hour. >> oh, look. here they come. >> i've never seen anything like this in my life. look at that. and a beetle that can power lift hundreds of times its own weight. >> convert the weight, right, you would be able to lift a military tank. >> what's amazing is to feel their strength. i mean, he could flip me around here in a second. and later, my blooper of the week. do you know which muscular marsupial dominates track and field, the long jump, and boxing? find out next on "the wild world of sports." i mean "wild countdown." we tried to leave our tents, not even to go get dinner. we couldn't get to dinner. the lions were everywhere! golly day! [dog barking] whoo!